package org.madao.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.madao.common.constant.AuthServerConstant;
import org.madao.common.utils.HttpUtils;
import org.madao.common.utils.R;
import org.madao.gulimall.auth.feign.MemberFeignService;
import org.madao.common.vo.MemberRespVo;
import org.madao.gulimall.auth.vo.SocialUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登录请求
 */
@Controller
@Slf4j
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code")String code, HttpSession session) throws Exception {
        Map<String,String> map=new HashMap<>();
        map.put("client_id","4109905968");
        map.put("client_secret","e978bcf8d2de0ec229858f3cb89d12d6");
        map.put("grant_type","authorization_code");
        map.put("redirect_uri","http://auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code",code);
        //1.根据code换取accessToken
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", new HashMap<String,String>(), null, map);
        //2.处理
        if (response.getStatusLine().getStatusCode()==200){
            //获取accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser= JSON.parseObject(json,SocialUser.class);

            //知道当前是哪个社交用户
            //1.当前用户如果是第一次进网站，自动注册进来（当前社交用户生成一个会员信息账号，以后这个社交账号就对应指定的会员）
            //登录或者注册这个社交用户
            R oauthlogin = memberFeignService.oauthlogin(socialUser);
            if (oauthlogin.getCode()==0){
                MemberRespVo data = oauthlogin.getData("data", new TypeReference<MemberRespVo>() {
                });
                log.info("登录成功！用户：{}",data.toString());
                //第一次使用session；命令浏览器保存卡号。jsessionid这个cookie
                //以后浏览器访问那个网站多会带着这个网站的cookie
                //子域之间；gulimall.com  auth.gulimall.com   order.gulimall.com
                //发卡的时候（指定域名为父域名），即使是子域系统发的卡，也能让父域直接使用
                session.setAttribute(AuthServerConstant.LOGIN_USER,data);
                //TODO 1.默认发的令牌session=…………。作用域：当前域；（解决子域session共享问题）
                //TODO 2.使用JSON的序列化方式来序列化对象数据到redis中
                //2登录成功就跳回首页
                return "redirect:http://gulimall.com";
            }else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        }else{
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}
